130BA186.11
P 3-03
P 3-02
Sum of all
references
P 3-00 Reference Range= [0] Min to Max
Resulting reference
Illustration 2.16 Sum of All References When Minimum
Reference is Set to a Minus Value
2.4.2 Scaling of Preset References and Bus
References
Preset references are scaled according to the following
rules:
•
When
parameter 3-00 Reference Range
is set to
[0]
Min–Max
, 0% reference equals 0 [unit] where unit
can be any unit, for example RPM, m/s, and bar.
100% reference equals the maximum (absolute
value of
parameter 3-03 Maximum Reference
,
absolute value of
parameter 3-02 Minimum
Reference
).
•
When
parameter 3-00 Reference Range
is set to
[1]
-Max–+Max
, 0% reference equals 0 [unit], and
100% reference equals maximum reference.
Bus references are scaled according to the following
rules:
•
When
parameter 3-00 Reference Range
is set to
[0]
Min–Max
, 0% reference equals minimum
reference and 100% reference equals maximum
reference.
•
When
parameter 3-00 Reference Range
is set to
[1]
-Max–+Max
, -100% reference equals -maximum
reference, and 100% reference equals maximum
reference.
2.4.3 Scaling of Analog and Pulse
References and Feedback
References and feedback are scaled from analog and pulse
inputs in the same way. The only difference is that a
reference above or below the specified minimum and
maximum endpoints (P1 and P2 in
) are
clamped while feedbacks above or below are not.
Resource output
[Hz]
Resource input
Terminal X
high
High reference/
feedback value
130BD431.10
8
[V]
50
10
P1
P2
1
0
Low reference/
feedback value
Illustration 2.17 Minimum and Maximum Endpoints
Product Overview
Design Guide
MG07B102
Danfoss A/S © 03/2016 All rights reserved.
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